Machine for shaping and sharpening disks.



O. T. FEGERT. MACHINE FOE SHAPING AND SHARPENING DISKS.

APPLICATION PILBD JULY 16, 1907.

Patented Nov. 10, 1908.

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i' fi Z07 B I f 2/ A TTOR/VE VS OTTO 'l. FEGERT, OF SAVANNAH, MISSOURI.

MACHINE FOR SHAPING AND SHARPENING'DISKS.

Specification of Letters Patent.

Patented Nov. 10, 1908.

Application filed Ju1y,16,1907. Serial No. 383,983.

To all whom it may concern:

Be it known that I, Orro T. Fnennr, a citizen of the United States,residing at Savannah, in the county of Andrew and State of Missouri,have invented a new and useful Machine for Shaping and Sharpening Disks,of which the following is a specification.

This invention has relation to machines for shaping and sharpening disksand it consists in the novel construction and arrangement of its partsas hereinafter shown and described.

The object of the invention is to provide a machine of specialconstruction which is adapted to be used to advantage for shaping up andsharpening disks of various sizes and configuration. The parts of themachine may be so adjusted that the disk may be sharpened or beveledupon its inner or outer edge as desired.

The machine consists primarily of a frame having rolls ournalcd forrotationthereon, one of which is fixed and the other is adjustable. Avertically adjustable bracket is attached to the frame below the rollsand an arm is pivotally attached to said bracket. An adjustable workholder is slidably mounted upon the arm and an extensible brace connectsthe outer end of the arm with the frame of the machine. The work holderconsists of binate blocks and means for adjusting the said blocks withrelation to each other, one of the said blocks being adapted to restupon the arm and the other block having means for retaining the disk.

In the accompanying drawing :-Figure 1 is a side elevation of a machine.Fig. 2 is an end elevation of the same with parts removed. Fig. 3 is anend elevation of the binate work-holding block, and Fig. 4 is a sideelevation of the same. Fig. 5 is a top plan view of the same.

The machine consists of a frame having the uprights 1 which areconnected together at their sides by the cross pieces 2. The shaft 3 isjournaled for rotation in the cross pieces 2 and the belt pulley 4 isattached :0 said shaft. The roll shaft 5 is journaled in the blocks 6, 6which are retained between the uprights 1. Said shaft 5 is provided witha worm wheel 7. The shaft 3 is provided with a worm 8 which meshes withthe wheel 7. The roll shaft 9 is journaled in the bearings 10, 10 whichare also located between the uprights 1, 1. The saidbearings 10 may movevertically between the said upright. The shafts 5 and 9 are pro videdwith the gear wheels 11 and 12 respectively which intermesh. Thebearings 10 are provided at their upper ends with the inclined surfaces13 lying transversely with relation to the shafts 9. The longitudinallymovable pin l llies at its end portion in perforations provided in. theuprights 1 above the bearings 10. Said rods are threaded at their endsand the nuts 15 engage the threaded ends of the said rod and bearagainst the outer sides of the uprights 1. The lock 16 is fixed to therod 14 and is provided with a lower beveled surface 17 which is adaptedto engage the surface 13 of the bearing 10. Thus it will be seen that byadjusting the rod 1 1 and the block 16 the movement of the shaft 9 awayfrom the shaft 5 may be limited or regulated. The bracket 18 is attachedto one end of the frame of the machine and is provided with theelongated slots 19 which receive the bolts 20 whereby the said bracketmay be adjusted vertically upon the frame of the machine. The rolls 21and 22 are attached to the ends of the shafts 9 and 5 respectively andare located above the bracket 18. The arm 23 is pivoted to the upper endof the bracket 18 and extends in the same general direction as theshafts 5 and 9 but not necessarily in alinement or parallel with thesame. Although, such positions may be assumed by the said arm. The armis provided with an elongated slot 2 1. A. stud 25 is attached to theframe of the machine below the bracket 18 and the screw 26 is journaledfor rotation in the said stud. The threaded portion of the said screwengages the lower end of the bracket 18 and affords means for moving thesaid bracket after the bolts 20 have loosened. When the bracket isproperly adjusted the said bolts 20 are again tightened and formpositive means for holding the bracket and relieve the thread of thescrew 26 of strain. The crank handle 27 is attached to the lower end ofthe screw 26.

brace made up of binate members 28 is pivoted at its lower end to thestud 25 and at its upper end to the outer end of the arm 23. Each of themembers 28 is provided with an elongated slot 29 and side lugs 30. Thelugs of one member receive the edges of the other member and vice versa,while the bolt 31 passes through the slots 29 of the two members andforms a securing means for the members which may be elongated ortelescoped at will.

A work holder 32 is provided which con sists of binate blocks 33arranged to slide with relation to each other, the upper one of whichmay swing laterally. The lower block is provided with a lug 34 whichis'located in the slot 2% ofthe arm 23. The screw 35 is journaled in theouter end of the arm 23 and is provided with a crank handle 26. Theinner end portion of said screw is threaded and engages the threadedperforations provided in the lug 34. By means of said screw the block 32may be adjusted bodily along the arm 23. The handle 36. is carried bythe upper block 33. Thus, by turning the handle 36 the-upper block 33may be moved with relation to the lower block 32. The upper block 33 maybe provided with an inclined work-supporting surface 37 and thethreaded. spindle 38 is erected upon the upper block 33 at a right angleto the surface 37. The hub of the disk 39 rests upon the surface 37 andsurrounds the spindle 3.8 and is held against the upper block 33 by thenut 40 which engages the thread of the spindle 38.

The rolls 21 and 22 may be of any desired configuration though shown inthe accompanying drawing and illustrated as being one cylindrical andthe other frustoconical, the cylindrical roll having an outstandingannular flange which enters a correspondmg recess provided in the otherroll, the edges of the flange and recess cooperating A both sides of itsedges or it may or beveled at either side of its edge as de with eachother ins uch manner as to consti tute a metal shear or cutter. 4 I

From the foregoing description it is obvious that a machine especiallyadapted for shaping and sharpening disks of various sizes and configuration is provided. The parts are so arranged that the disk may bepresented to the rolls at any desired angle irrespective ofits shape,spindle 38 it may be sharpened or beveled at be sharpened.

sired. In moving the disk toward the rolls the screw 35 is turnedthroughout the major adjustment while the handle 36 is swung to obtainthe minor adjustment.

Having described my invention what I claim as new and desire-to secureby Letters- Patent is A machine as described 7 comprising rolls Ournaledfor rotation,

a bracket slidably mounted upon the machine for movement in transversealinement with the centers of the rolls, means for moving said bracketwith relation to the rolls, meansfor fixing the bracket with relation tothe rolls, an arm pivoted to the bracket so as to swing in a plane inwhich lie the roll axes and awork support adjustable along the arm. r

In testimony that I claim the foregoing as my own, I have hereto afiixedmy signature in the presence of two witnesses.

OTTO T. FEGERT. V

Witnesses:

OSCAR HALL, A. L. WHITEFORD.

and that reversing the disk upon the,

